[PATCH v9 01/16] drm/mediatek: gamma: Adjust mtk_drm_gamma_set_common parameters

From: AngeloGioacchino Del Regno
Date: Thu Aug 03 2023 - 07:02:47 EST


From: "Jason-JH.Lin" <jason-jh.lin@xxxxxxxxxxxx>

Adjust the parameters in mtk_drm_gamma_set_common()
- add (struct device *dev) to get lut_diff from gamma's driver data
- remove (bool lut_diff) and use false as default value in the function

Signed-off-by: Jason-JH.Lin <jason-jh.lin@xxxxxxxxxxxx>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Reviewed-by: Alexandre Mergnat <amergnat@xxxxxxxxxxxx>
---
drivers/gpu/drm/mediatek/mtk_disp_aal.c | 2 +-
drivers/gpu/drm/mediatek/mtk_disp_drv.h | 2 +-
drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 18 ++++++++++++------
3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_aal.c b/drivers/gpu/drm/mediatek/mtk_disp_aal.c
index cdbec79474d1..2f602f1f1c49 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_aal.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_aal.c
@@ -66,7 +66,7 @@ void mtk_aal_gamma_set(struct device *dev, struct drm_crtc_state *state)
struct mtk_disp_aal *aal = dev_get_drvdata(dev);

if (aal->data && aal->data->has_gamma)
- mtk_gamma_set_common(aal->regs, state, false);
+ mtk_gamma_set_common(NULL, aal->regs, state);
}

void mtk_aal_start(struct device *dev)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
index 2254038519e1..75045932353e 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
@@ -54,7 +54,7 @@ void mtk_gamma_config(struct device *dev, unsigned int w,
unsigned int h, unsigned int vrefresh,
unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state);
-void mtk_gamma_set_common(void __iomem *regs, struct drm_crtc_state *state, bool lut_diff);
+void mtk_gamma_set_common(struct device *dev, void __iomem *regs, struct drm_crtc_state *state);
void mtk_gamma_start(struct device *dev);
void mtk_gamma_stop(struct device *dev);

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
index 7746dceadb20..d42cc0698d83 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
@@ -54,14 +54,24 @@ void mtk_gamma_clk_disable(struct device *dev)
clk_disable_unprepare(gamma->clk);
}

-void mtk_gamma_set_common(void __iomem *regs, struct drm_crtc_state *state, bool lut_diff)
+void mtk_gamma_set_common(struct device *dev, void __iomem *regs, struct drm_crtc_state *state)
{
+ struct mtk_disp_gamma *gamma;
unsigned int i, reg;
struct drm_color_lut *lut;
void __iomem *lut_base;
+ bool lut_diff;
u32 word;
u32 diff[3] = {0};

+ /* If we're called from AAL, dev is NULL */
+ gamma = dev ? dev_get_drvdata(dev) : NULL;
+
+ if (gamma && gamma->data)
+ lut_diff = gamma->data->lut_diff;
+ else
+ lut_diff = false;
+
if (state->gamma_lut) {
reg = readl(regs + DISP_GAMMA_CFG);
reg = reg | GAMMA_LUT_EN;
@@ -91,12 +101,8 @@ void mtk_gamma_set_common(void __iomem *regs, struct drm_crtc_state *state, bool
void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state)
{
struct mtk_disp_gamma *gamma = dev_get_drvdata(dev);
- bool lut_diff = false;
-
- if (gamma->data)
- lut_diff = gamma->data->lut_diff;

- mtk_gamma_set_common(gamma->regs, state, lut_diff);
+ mtk_gamma_set_common(dev, gamma->regs, state);
}

void mtk_gamma_config(struct device *dev, unsigned int w,
--
2.41.0